Problem with reading tree from more than one file with TSelector

I used the TChain->MakeSelector to make a analysis class. Without making any changes to the generated class, if I try to run the analysis on a TChain, it crashes with the following warning

Is there solution to avoid this? I do not experience this when using generated classes from TChain->MakeClass.

ROOT Version: Not Provided
Platform: Not Provided
Compiler: Not Provided


In order to understand the issue, please provide us a bit more information: which ROOT version do you use on which platform? Can you give us a macro that reproduces the error?


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